From November 24 to 28, 2025, German and Swiss law enforcement authorities, supported by Europol and Eurojust, conducted a large-scale operation against the cryptocurrency mixing service Cryptomixer.io. Three servers in Switzerland were seized, the domain was blocked, and cryptocurrencies worth approximately 25 million euros were confiscated. Additionally, more than 12 terabytes of data were secured by investigators. Since its launch in 2016, Cryptomixer.io had been one of the largest Bitcoin mixers, anonymizing transactions by pooling coins from various users and redistributing them in smaller amounts to new addresses. This method disrupts the transaction chain and complicates traceability—a service primarily used in the underground economy and for obfuscating illicit financial flows.
The platform was accessible both on the clear web and the darknet, processing billions in transactions, many of which were linked to illegal activities such as ransomware attacks, drug and arms trafficking, or fraud. After the seizure, authorities placed a notice on the website warning that anyone using the service could face investigation. Whether this warning applies universally or requires nuanced consideration is a key question for those affected.










